Sökning: "Multi cylinder"

Visar resultat 6 - 10 av 47 avhandlingar innehållade orden Multi cylinder.

  1. 6. Static and Dynamic Modelling of the Drying Section of a Paper Machine

    Författare :Magnus Karlsson; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pappers- och massateknik; Modelling; Wood; Paper; Multi-Cylinder; Simulation; Control; Steam; Air; Dew Point; Moisture Gradients; pulp and paper technology; Pressure Gradients;

    Sammanfattning : The paper making process involves chopping of wood, cooking and forming, followed by dewatering in a vacuum section, press section and drying section. Several models for the most important parts of the paper machine drying section are presented in this thesis to describe phenomena at steady state and during state transitions. LÄS MER

  3. 7. Evaluation of Gasoline PPC in a Multi-cylinder Engine : Capabilities & Challenges

    Författare :Nikolaos Dimitrakopoulos; Förbränningsmotorer; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Partially Premixed Combustion PPC ; Light duty engine; Efficiency; Gasoline Compression Ignition; renewable gasoline;

    Sammanfattning : Internal combustion engines have been the most used engine design when it comes to vehicle propulsion and transportation. But as the number of vehicles increase, new problems arise as well. LÄS MER

  4. 8. Model Predictive Control (MPC) of an Advanced Multi-Cylinder Engine for Transient Operations

    Författare :Lianhao Yin; Institutionen för energivetenskaper; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MPC; Receding horizon sliding mode control; PPC;

    Sammanfattning : The transportation sector is one of the main contributors to greenhouse gas CO2 and emission of toxic gas. In this sector, advanced technologies and innovations to increase engine efficiency is an important research topic. Low-Temperature Combustion (LTC) concepts are effective approaches for high-efficiency engines. LÄS MER

  5. 9. Friction in Piston Ring - Cylinder Liner Contacts

    Författare :Markus Söderfjäll; Peder Klit; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

    Sammanfattning : With today’s striving towards reduction of fuel consumption it is moreimportant than ever to understand the function of different componentsin the internal combustion engine. There is a need to develop and usetools to investigate and predict the result of specific design changesmade on the components. LÄS MER

  7. 10. Investigation of Partially Premixed Combustion in an Optical Engine : In-Cylinder Flow and Combustion Characterization

    Författare :Slavey Tanov; Förbränningsmotorer; []
    Nyckelord :PPC; in-cylinder flow structures; Combustion diagnostics; Gasoline; Gasoline-Ethanol; Multiple Injection; Stratification Level;

    Sammanfattning : The diesel engine is one of the most economic power sources and is therefore used in a range of technical solutions. The low fuel consumption combined with high engine performance makes it attractive for transportation vehicles. LÄS MER